Improvement in devices for adjusting plane-irons



J. A. TRAUT.

[DEVICE FOR ADJUSTING PLANE-IRONS. No. 186,281. fatented Jan.16,1877

ports the plane-iron.

UNITED STATES PATENT OEEIoE.

J USTUS A. TRACT, OF NEW BRITAIN, CONNECTICUT.

IMPROVEMENT IN DEVICES FOR ADJUSTING PLANE-IRONS.

. Specification forming part of Letters Patent No. 186,281,

dated January 16,1877; application filed January 24, 1876.

provided with a scroll-thread upon its face, all

as hereinafter described.

In the accompanying drawing, Figure l is a central longitudinal sectionof a plane, showing an adjusting device which embodies my invention.Fig. 2 is a plan view of detached parts thereof, showing the frog andscrollthread.

The stock A and handle B may be of any ordinary construction, and eitherof wood or iron. The cap-plate C and plane-iron D, together with thefastening device .15, may also be of any construction now known. Upon anarm, a, or other support secured to the body of the stock A, I place arevolving handle, b, the edge of which is made in a convenient form tobe rotated by hand, and the upper face of which is provided with ascroll-thread, c. This revolving handle and scroll is so secured to thestock that its face will be nearly in line with the face of the frog d,which sup- 1 forma lug, g, on the cap-plate C, which projects downward,and

' through the slot in the plane-iron D. The plane-iron and its cap-plateare secured together by the screw it in the ordinary manner, so thatboth move together. The lug g is so placed in the cap-plate that when inposition for use, as shown in Fig. 1, it engages with the scroll-threadc.

the lug y will be thrown toward the outer end of the scroll, and it willcarry the cap-plate and plane-iron with it, and draw them into the stockA. By reversing the movement of the scroll-thread the lug andplane-iron. are carried in the opposite direction, whereby any desiredadjustment of the plane-iron may be effected.

the cap-plate C but it is evident that the result would be the same incase the l ugg were set in the plane-iron D, and that more than one lugmight be employed, if desired.

JUSTUS A. TRAUT.

Witnesses:

T. A. OoNKLIN, JAMES SHEPARD.

By rotating the handle b in one direction I have herein described thelug g as set in What I claim as myinvention, and desire to

